Key developments on Sept. 5: Russian advance near Pokrovsk stalled in recent days, Syrskyi saysRussia pulls 60,000 troops to counter Kursk incursion, Zelensky claimsOfficials say 55 killed, 328 injured in Poltava as rescue operations concludeRomanian president signs decree on donating Patriot to UkraineBelarus confirms downing drone during Russian attack on UkraineUkrainian soldiers have managed to halt the advance of Russian troops in the Pokrovsk sector in Donetsk Oblast, Commander-in-Chief Oleksandr Syrskyi said in an interview with CNN aired on Sept. 5. The eastern front near Pokrovsk has …